How long should a password be?
Password length is one of the strongest levers for security. For important accounts, 16 characters or more is a good standard.
Why length often brings more value than complexity
Many password guidelines focus on special characters and capitalization. In practice, additional length usually increases the search space to be more powerful and robust.
A short password with lots of rules often remains predictable because users repeat the same patterns: a word, a number and an exclamation mark.
Useful guidelines
- 12 characters is the minimum for less critical accounts.
- 16 characters or more is a good standard for email, work, and finance.
- Passphrases containing 4 to 6 random words are a strong and often user-friendly alternative.
When even more length makes sense
Additional length is particularly worthwhile for master passwords, key accounts and other central access points. These access data often indirectly protect many other accounts.
If a service supports long passwords, there is rarely a good reason to stay just above the minimum.
Quick checklist
The most important actions from this guide in compact form.
- For main accounts, allow 16 to 20 characters as standard.
- Don't swap length for memorability, but switch to passphrases if necessary.
- Check the maximum password length of a service and use it if possible.
Common questions
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